The Rosensaal is the largest conference room in the separately accessible Aschrottflügel. The circumferential, circular gallery gives it a distinctive ambience and offers additional space, for example for exhibitions accompanying conferences. The large glass front at the rear, which lets in daylight, creates a feeling of openness and a pleasant working atmosphere. However, the Rosensaal can also be completely darkened if required, so that presentations or an individual lighting design can be shown to their best advantage. The Rosensaal is located directly behind the stage of the large ballroom, which is directly accessible from here.